diff --git a/.travis.yml b/.travis.yml
index 229a623..9055565 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ rvm:
   - 2.3
   - 2.4
   - 2.5
+  - 2.6
   - ruby-head
   - jruby
   - jruby-head
diff --git a/Gemfile b/Gemfile
index 6500ba3..157c7fd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,5 @@
 source "https://rubygems.org"
 
 gem "jruby-openssl", ">= 0.8.2", :platforms => :jruby
-gem "rubysl", "~> 2.0.15", :platforms => :rbx
-gem "rubysl-test-unit", "~> 2.0.3", :platforms => :rbx
 
 gemspec